Isolation of Bowman-Birk-Inhibitor from soybean extracts using novel peptide probes and high gradient magnetic separation

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Title: Isolation of Bowman-Birk-Inhibitor from soybean extracts using novel peptide probes and high gradient magnetic separation
Authors: Fields, Conor
Mallee, Paul
Lee, Gil U.
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Date: 15-Oct-2012
Abstract: Soybean proteins offer exceptional promise in the area of cancer prevention and treatment. Specifically, Bowman-Birk Inhibitor (BBI) has the ability to suppress carcinogenesis in vivo, which has been attributed to BBI’s inhibition of serine protease (trypsin and chymotrypsin) activity. The lack of molecular probes for the isolation of this protein has made it difficult to work with, limiting its progress as a significant candidate in the treatment of cancer. This study has successfully identified a set of novel synthetic peptides targeting the BBI, and has demonstrated the ability to bind BBI in vitro. One of those probes has been covalently immobilised on superparamagnetic microbeads to allow the isolation of BBI from soy whey mixtures in a single step. Our ultimate goal is the use of the described synthetic probe to facilitate the isolation of this potentially therapeutic protein for low cost, scalable analysis and production of BBI.
Funding Details: European Commission - Seventh Framework Programme (FP7)
Type of material: Journal Article
Publisher: Elsevier
Journal: Food Chemistry
Volume: 134
Issue: 4
Start page: 1831
End page: 1838
Copyright (published version): 2012 Elsevier
Keywords: Soybean proteinsBowman-Birk InhibitorPhage displaySuperparamagnetic particlesPurificationSoluble peptide binders
DOI: 10.1016/j.foodchem.2012.03.085
Language: en
Status of Item: Peer reviewed
Appears in Collections:Medicine Research Collection

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